San Mateo, California Population 2024

98,152

San Mateo is a city located in San Mateo County California. San Mateo has a 2024 population of 98,152. San Mateo is currently declining at a rate of -1.42% annually and its population has decreased by -6.81% since the most recent census, which recorded a population of 105,327 in 2020.

The average household income in San Mateo is $201,146 with a poverty rate of 7.28%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in San Mateo is 38.1 years, 36.5 years for males, and 39.8 years for females.

San Mateo Demographics

According to the most recent ACS, the racial composition of San Mateo was:

  • White: 44.28%
  • Asian: 26.99%
  • Other race: 12.88%
  • Two or more races: 11.57%
  • Black or African American: 1.88%
  • Native Hawaiian or Pacific Islander: 1.44%
  • Native American: 0.96%
Land Area (mi²)
12.2 sq mi
Density (mi²)
8,064.30/sq mi
Growth Since 2020
-6.81% (-7,175)
The current population of San Mateo, California is 98,152 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 105,327.

San Mateo, California Population 2024

Population by Race

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Race
Population
Percentage (of total)
White46,12844.28%
Asian28,10926.99%
Other race13,42112.88%
Two or more races12,05211.57%
Black or African American1,9541.88%
Native Hawaiian or Pacific Islander1,5051.44%
Native American9960.96%
showing: 7 rows

White

Asian

Other race

Two or more races

Black or African American

Native Hawaiian or Pacific Islander

Native American

San Mateo Population by Race

San Mateo Population Pyramid 2024

San Mateo Median Age

38.1

Total

36.5

Male

39.8

Female

San Mateo Adults

There are 83,703 adults, (17,052 of whom are seniors) in San Mateo.

San Mateo Age Dependency

56.3

Age Dependency Ratio

25.6

Old Age Dependency Ratio

30.7

Child Dependency Ratio

San Mateo Sex Ratio

Female52,16750.08%
Male51,99849.92%

San Mateo Population by Age

San Mateo Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All39,9162.5651.648.4
Married19,7063.2662.337.7
Non Family14,9111.3340.359.7
Female3,4853.6148.251.8
Male1,8143.0733.666.4
showing: 5 rows

3.19

Average Family Size

2.56

Average Household Size

51.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

San Mateo Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

San Mateo Educational Attainment by Sex (over 25)

San Mateo Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 97.18%.

The highest rate of bachelors degrees is among asian people with a rate of 75.18%.

San Mateo Educational Attainment by Race

All

Male

Female

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$90,529

Average Earnings

$106,132

Average Male

$80,573

Average Female

San Mateo Earnings by Educational Attainment

San Mateo Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

San Mateo Language

56.53% of San Mateo residents speak only English, while 43.47% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 17.89% of the population.

San Mateo Language

San Mateo Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Hispanic25,4982,91311.42%
White40,3001,8994.71%
Other13,2671,87514.13%
Asian27,9741,4115.04%
Multiple12,0281,0248.51%
Islander1,50546630.96%
Black1,85333117.86%
Native970292.99%
showing: 8 rows

7.28%

Overall Poverty Rate

6.08%

Male Poverty Rate

8.47%

Female Poverty Rate

Poverty in San Mateo

The race most likely to be in poverty in San Mateo is Islander, with 30.96% below the poverty level.

The race least likely to be in poverty in San Mateo is Native, with 2.99% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.74%. Among those working part-time, it was 11.32%, and for those that did not work, the poverty rate was 16.57%.

San Mateo Poverty

rate

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Rate
Poverty
Less Than 9th Grade21.72%
High School11.88%
Some College7.88%
Bachelors or Greater3.17%
showing: 4 rows

San Mateo Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed25.81%
Male Unemployed9.42%
Female Employed3.69%
Male Employed3.58%
showing: 4 rows

San Mateo Poverty Rate by Employment Status and Sex

San Mateo Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

San Mateo Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.8%

Overall Marriage Rate

52.7%

Male Marriage Rate

48.8%

Female Marriage Rate

San Mateo Married by Age and Sex

male

female

San Mateo Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

San Mateo Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

San Mateo Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,689

Number of Veterans

2,499

Male Veterans

190

Female Veterans

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San Mateo Veterans by War

count

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San Mateo Veterans by Age

count

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San Mateo Veterans by Race

San Mateo Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.39%

Veteran Poverty Rate

30.74%

Veteran Disability Rate

San Mateo Veterans by Education

LaborForceParticipation

70.1%

Labor Force Participation

66.8%

Employment Rate

4.7%

Unemployment Rate

San Mateo Employment by Age

LaborForceParticipation

San Mateo Employment by Race

LaborForceParticipation

San Mateo Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

46.69%

Born in San Mateo

64.15%

Native Born

35.85%

Foreign Born

18.19%

Non Citizen

17.66%

Naturalized

Place of Birth

64.15% of San Mateo residents were born in the United States, with 46.69% having been born in California. 18.19% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

San Mateo Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202991,072-1,416-1.53%
202892,488-1,416-1.51%
202793,904-1,416-1.49%
202695,320-1,416-1.46%
202596,736-1,416-1.44%
202498,152-1,416-1.42%
202399,568-1,416-1.4%
2022100,984-1,416-1.38%
2021102,400-2,927-2.78%
2020105,3271,8641.8%
2019103,463-767-0.74%
2018104,230540.05%
2017104,1762820.27%
2016103,8946220.6%
2015103,2721,4491.42%
2014101,8231,1661.16%
2013100,6571,1121.12%
201299,5451,3011.32%
201198,2449881.02%
201097,2564,7745.16%
200092,4826,9968.18%
199085,4867,84610.11%
198077,640-1,351-1.71%
197078,9919,12113.05%
196069,87028,08867.23%
195041,78222,379115.34%
194019,4035,95944.32%
193013,4447,465124.85%
19205,9791,59536.38%
19104,3842,552139.3%
19001,83290096.57%
1880932
showing: 32 rows

San Mateo Population by Year